Transmission and Drivetrain: Technical Service Bulletins

• Customer Interest
  • A/T - 4L60-E Harsh 1-2 Gear Upshift/MIL/SES/CEL ON
  • A/T - Transmission Fluid Leak From Pump Body
  • A/T - Engagement Delay When Vehicle Unused for 48 Hours
  • A/T - Engine Speed Flare During Part Throttle Downshift
  • Front Propeller Shaft C/V Boot - Torn or Cracked
  • A/T - Upshift Flare/No 3rd or 4th/Launch Shudder
  • A/T - 1-2 or 2-3 Slip/Flare, Launch Shudder & DTC P1870
  • A/T - 4L60E Transmission Fluid Leak
  • A/T - Fluid Leak at Converter Housing
  • A/T - Poor Performance/MIL ON/DTC P0757
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • A/T - No Movement in Drive or 3rd Gear
  • A/T - 4L60/65E, No Reverse/2nd or 4th Gear
• By Symptom
  • Abnormal wear/deterioration
    • Transfer Case - RTV Silicone Sealant Usage Precaution
    • Tools - Converter Housing Bolt Removal
    • Front Propeller Shaft C/V Boot - Torn or Cracked
    • A/T - Front Bushing Wear
  • Customer Interest
    • A/T - 4L60-E Harsh 1-2 Gear Upshift/MIL/SES/CEL ON
    • A/T - Transmission Fluid Leak From Pump Body
    • A/T - Engagement Delay When Vehicle Unused for 48 Hours
    • A/T - Engine Speed Flare During Part Throttle Downshift
    • Front Propeller Shaft C/V Boot - Torn or Cracked
    • A/T - Upshift Flare/No 3rd or 4th/Launch Shudder
    • A/T - 1-2 or 2-3 Slip/Flare, Launch Shudder & DTC P1870
    • A/T - 4L60E Transmission Fluid Leak
    • A/T - Fluid Leak at Converter Housing
    • A/T - Poor Performance/MIL ON/DTC P0757
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
    • A/T - No Movement in Drive or 3rd Gear
    • A/T - 4L60/65E, No Reverse/2nd or 4th Gear
  • Driveability
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Erratic Operation
    • A/T - DTC 81/82 or P0753/P0758/No Upshift
  • Erratic Shifting
    • A/T - Poor Performance/MIL ON/DTC P0757
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • False instrument warning light/gauges
    • A/T - DTC 81/82 or P0753/P0758/No Upshift
  • Hard Shifting
    • A/T - 4L60-E Harsh 1-2 Gear Upshift/MIL/SES/CEL ON
  • Hunting-Surging
    • A/T - Engine Speed Flare During Part Throttle Downshift
  • Inoperative
    • A/T - No Movement in Drive or 3rd Gear
  • Leaks
    • A/T - Transmission Fluid Leak From Pump Body
    • A/T - 4L60E Transmission Fluid Leak
    • A/T - Fluid Leak at Converter Housing
    • A/T - Diagnosing Fluid Leaks
  • No shift/Incorrect gear engagement
    • A/T - Upshift Flare/No 3rd or 4th/Launch Shudder
    • A/T - DTC 81/82 or P0753/P0758/No Upshift
    • A/T - Slipping or No-Shift/Metal Sealing Rings
    • A/T - 4L60/65E, No Reverse/2nd or 4th Gear
  • Slipping
    • A/T - Upshift Flare/No 3rd or 4th/Launch Shudder
    • A/T - Poor Performance/MIL ON/DTC P0757
  • Sticking/Binding
    • A/T - Park/Neutral Switch Connector Cannot Be Removed
• All Technical Service Bulletins
  • Drivetrain - Information on Driveline Clunk Noise
  • Vehicle - Engine And Sub Systems Flushing Info. (CANADA)
  • Vehicle - Engine And Sub-Systems Flushing Recommendations
  • M/T - Operating Characteristics Information
  • A/T - Fluid Oil Cooler Flow Test
  • A/T - 2-3 Upshift or 3-2 Downshift Clunk Noise
  • A/T - Slight Vehicle Movement In Park At Start Up
  • Drivetrain - AWD/4WD System Driveline Characteristics
  • ACDelco(R) Remanufactured Transmissions - Program Update
    • Overview
    • Warranty Coverage
    • New Warranty Registration
    • Warranty Claim Submission Procedures
  • Engine & Transmission - Oil Cooler Quick Connect Fitting
  • Propeller Shaft - Revised Runout Specification
  • Propeller Shaft Runout - Revised Specifications
  • Drivetrain - Revised Transfer Case Service Procedures
  • Transfer Case - RTV Silicone Sealant Usage Precaution
  • A/T - 4L60-E Harsh 1-2 Gear Upshift/MIL/SES/CEL ON
  • A/T - Transmission Fluid Leak From Pump Body
  • A/T - Engagement Delay When Vehicle Unused for 48 Hours
  • A/T - 4L65E, 4L60E, 4L60, 200-4R Oil Pump Spring
  • A/T - Oil Cooler Flushing Frequently Asked Questions
  • A/T - Engine Speed Flare During Part Throttle Downshift
  • Tools - Converter Housing Bolt Removal
  • Front Propeller Shaft C/V Boot - Torn or Cracked
  • A/T - Park/Neutral Switch Connector Cannot Be Removed
  • A/T - Upshift Flare/No 3rd or 4th/Launch Shudder
  • A/T - DTC 81/82 or P0753/P0758/No Upshift
  • A/T - 1-2 or 2-3 Slip/Flare, Launch Shudder & DTC P1870
  • A/T - 4L60-E DTC P1870 Diagnosis
  • A/T - 4L60E Transmission Fluid Leak
  • A/T - New Product Information
  • A/T - Identification Location for Two Piece Case
  • A/T - Packaging GM Goodwrench (SRTA) Containers
  • A/T - Fluid Leak at Converter Housing
  • A/T - Revised Diagnostic Information
  • A/T - New Solenoid Testing Kit
  • A/T - Service Procedure Changes
  • A/T - Core Return Product Feedback Form
  • A/T - Diagnosing Fluid Leaks
  • A/T - Engine Vacuum Testing
  • A/T - How To Use A Pressure Gauge
  • A/T - Slipping or No-Shift/Metal Sealing Rings
  • A/T - Front Bushing Wear
  • A/T - Math Formulas Part I
    • Overview
    • Shift Speed and Pressure
    • Speedometer Ratios
  • A/T - Twenty Steps To Successful Repairs
  • A/T - Math Part II
  • A/T - Choosing the Right ATF
  • Drivetrain - Transfer Case Control Module Replacement
  • A/T - Shift Lock Control Feature Function
  • Drivetrain - Recommended Axle Lubricant
  • Drivetrain - Rear Axle Lubricant Compatibility & Usage
  • A/T - 1-2 Accumulator Piston/Outer Spring Replacement
  • A/T - Cracked Case Diagnosis
  • A/T - New Design Reaction Shell Thrust Washer
  • Drivetrain - Updated Transfer Case Speed Sensor Conn.
  • A/T - Poor Performance/MIL ON/DTC P0757
  • M/T - Hydraulic Clutch Bleeding Procedure Improvement
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • A/T - Torque Converter Replacement Information
  • A/T - No Movement in Drive or 3rd Gear
  • A/T - 4L60/65E, No Reverse/2nd or 4th Gear
  • A/T Control - DTC P0756 Diagnostic Tips
  • A/T - Water Or Coolant Contamination Information
  • A/T - DEXRON(R)-VI Fluid Information